You can find the Angstadt Arms AR-15 5.56 Bolt Carrier Group here Fast $9.95 shipping! Orders over $200 ship for free!
The Angstadt Arms AR-15 5.56 Bolt Carrier Group is an M-16 Full Auto style complete assembled Mil-Spec Bolt Carrier group machined from 8620 alloy steel with a QPQ black nitride finish. The bolt is machined from Carpenter 158 tool steel which is shot peened, high pressure tested (HPT) and magnetic particle inspected (MPI). Properly staked gas key secured to the carrier with grade 8 fasteners.
Caliber: 5.56